Lamp socket



Oct. 31, 1933. c. w ROHOUR LAMP SOCKET Filed Jan. 24; 1930 INVENTOR.

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Patented Oct. 31, 1933 UNITED STATES PATENT; OFFICE LAMP SOCKET Chris W. Rohour, Connersville, Ind., assignor, by l mesne assignments, to The Corcoran-Brown Lamp Company, Cincinnati, Ohio, a corporation of Ohio Application January 24, 1930. Serial No. 423,098

'5 Claims. (01. 173-339) This invention relates to a flexible mounting for a fixed focus reflector and socket.

The chief object of this invention is to provide a fixed focus reflector and socket construc tially fixed focus relation and will be returned to that position even though slightly moved therefrom as occurs in mounting and dismounting bulbs for replacement purposes.

' stood from the following description and claims and the accompanying drawing. I

Fig. 1 is a central sectional view through a lamp reflector to which the lamp socket, which isthe subject of the present invention, has been applied.

. Fig. 2 is a fragmentary sectional View taken at right angles-to Fig. 1. a

Fig. 3 illustrates in detail the yielding member for returning the socket to fixed focus position when moved therefrom. I

Fig. 4 is a fragmentary view of a section of the reflector illustrating the shape of the opening cut therein for the insertion of the lamp socket.

Fig. 5"is a sectional View through the lamp socket itself, illustrating the current supplying terminal construction.

Fig. 6 is a detailed view of one of the members of the socket construction.

Fig. 7jis a similar detailed view of anotherof said members. i

In the drawing 10 indicates a reflector having 'a central aperture 11 and a pair of diametrical positioned recesses or enlargements 12. Midway between said enlargementsare a pair of tongues 13 which extend inwardly into the central aperture.

The yielding locking and centering spring is substantially U-shaped having the two legs 14 connected by the midportion 15. Each leg terminates in an outwardly directed angular portion 16. Each leg is straight in one plane but is substantially arcuate in a transverse plane and includes an intermediate offset portion 17, forming a seat. 1

The socket includes a bulb receiving portion 18 provided with a pair of bayonet slots 19, for lamp bulb bayonet pin reception and lamp bulb mounting. Socket 18 includes an annular beaded portion 20 or the like, which bears against the forward face of the reflector adjacent the aperture when the socket is mounted therein. The rearward portion of the socket includes a pair of slots 21, that extend from the opposite end of the socket toward the beaded portion. Each slot 21 includes a lateral extension 22 which terminates in an extension 23 that lies parallel to the portion 21 but offset therefrom by the length of the transverse connecting slot portion 22. The end of slot 23 adjacent its connection with transverse slot 22 is extended toward the end of the socket as at 24, forming a seat or recess. Slot 23 terminates immediately adjacent the bead 20.

The current conductor support construction includes a pair of metallic spacing discs 25 and 26. Each disc includes a pair of diametrically arranged oppositely extending tongues 27 and 28 respectively. The disc 25 is not circular while the disc 26 is circular and mounts an enlargement 29 provided witha pair of apertures 30 for conductor reception. The disc 25 is likewise providedwith apertures 31 in similarly spaced relation relative to each other and the extension 2'7 so that when the discs 25 and 26 are mounted in the socket the apertures 30 and 31 will register with each other. I

The two discs are maintained inspaced relation by a spring construction and since a pair of registering apertures 30 and 31 are provided a similar number of coil springs 33 are interposed between said discs. Each spring 33 is concentrically mounted uponthe wire or current conductor mounted in the apertures. Each wire or current conductor terminates in an external contact 34 whichis enlarged and which is secured to insulation disc 35 upon the disc 25.

The socket is inserted in the reflector aperture with the tongues 13 initially registering with slots'21, then passing laterally through slots 22 and thence through slots23. To so mount the socket requires axial and rotative movement.

The U-shaped spring is then passed laterally beshaped spring is held against displacement since in mounting it receives tongue 36 and is under tension when flattened. This holds the socket in relatively flxed focus relation yet permits slight cocking of the socket in the mounting of lamp bulbs for replacement purposes. in so doing the socket may yield slightly in position but it will always return to the predetermined position. To permit the passage of the outwardly projecting tongues 36 in the axial installation of the socket in the reflector, the central aperture of the latter includes enlargement or recesses 12.

The tongues 2'? of the forward disc are receivable by the slots 23 and the disc body is receivable by the center portion of the socket. Previous to positioning the conductors and discs in the socket, they are associated together. After the first disc has been mounted in the socket the rear disc 26 is similarly mounted and the tongues 28 thereof a e ne mi e in. s at i e. ece ses 1%- Fi n 'i ss33 ma nt d s? mp s t n im flir tateme nst a .2 in. t sa e and ma nt th s mm ia y "a ce th endfortne socket by seating the extensions 28 in the recesses Instead Ora double contact constructionjhe discs may support single contact construction if desired and without departing from the scope of the invention. Insulated wires pass through the apertures 30 and 31 and terminate in the contact enlargements 34 in insu lated relation.

V The foregoing describes a simple, readily assembledflxed focus type of reflector and soeiiet construction which as before 'rnentioned hasthe inherent advantage of being relatively perman'ently positioned'although yieldable under strain.

The invention claimed is: 1 p 1. In asocket constructionthe combination of Y a tubular body including a plurality of slots extending longitudinally thereof from one end and arranged in spaced relation, a lateral extension for each slot andja longitudinal extension thereof, terminating short of the other end, a 'pair of discs or conductor support ea a ing a similar inimher or oppositely positioned radially extending tongues for slot reception, and discfinounting yieldingrneans, interposed between the discs 'for normally. projecting one .disc to the remote. end or the longitudinal extension of the slot and ior positioning the other disc at the oonnecting ..e'iid or" said slot extension, the last Incandescent of said longitudinal slot extension being extended ro isapmgor the disc'radialenlarg ernent. I

2. A device of the character described meme ing in. combination an apertured reflector, a socket, receivable by the reflector .ape'rtiireand including a portion arranged. for light biilb mounting, means intermediate 'the socket ends io-r reflector engagement immediacy adjacent the aperture'for limiting movement ofg'the socket in one direction in. the reflector aperture, other means carried by said socket for positioning upon the opposite side of the reflectorwhen the socket is mounted, and a spring construction arranged to bear against the reflectoruponthelside opposite from the first mentioned reflector engagement and arranged to engage the secondmentioned other] means for, yielding retention of, the socket in the reflector aperture, saidspring'and second mentioned other means engagement being of the automatic locating or seatingjtypie, said socketincluding a tubular body havingfapair of diametrically positioned slots extending longitudinally thereof from oneten d, a lateralextension for each slot and a'longitudinal extension thereof terminating short of the other end, a pair of discs for conductor support each having a pair of oppositely positioned radially extending tongues for diametrical slot reception, and disc mounting yielding means interposed between the discs for normally projectingone disc to the end of the longitudinal slot extension and for positioning the other disc at the other end of said slot extension, the last mentioned end of said longitndinal slot extension extending toward the socket end and parallel to the first mentioned socket slot for seating of the disc radial enlargements, said reflector including a slot receivable tongue extending into the aperture for preventing socket rotation in said aperture 3. A device 'of the character described includ ing ,in. combination an apertured reflector, a socket receivable by the reflector aperture and including a portion arranged for light bulb mounting, means intermediate the socket ends for renettd'r engagemen ,iinrnedi'atelyjadja' ent the aperture, in limiting movemen of the sdckt in one d'i' often in thereflector sperm e, ther meanestd by said socket for so updates opposite "side ot'tl'ie reflector jwhen socketfisin'ounted, and'a ngoon'strncti" ranged to bear against the fre'fl ctofr 'i'ip'o'n th opposite from the first ineirt V gagenient. and 'a'rniged toje the second mentioned other "means forfyielding' retention or the socket inthe "reflector apert 1 'sa d g and second mentioned other means engage, being of the automatic, locating or seating type, said spr ng b'eing'siibst'antially ,oj-sh a can with the legs snbstantiallylacua andn the intermediate rti'fn of each jg set for "predetermined tingj of thefsec" j entioned. meanst Qsai'd 'o ikelt tubular body aving a "pair siti ed slots from one end, a 'lateral je xte anda longitudinal extension there' n M shorto f the other nd'and extend fgtowardbut teiirnina'tin'g short or the sam s ketefiflfanid parallel to the "first mentioned'socke't slo'tfa 120 of discsiorconductorsupport each having a air or oppositely positioned rad flly exteriding tongues for diametricalslot p'tio n, mounting yi'ldihgmeansintei' V H discs'for norinall "projecting'on disc to the end ongitudinal slot extensi 'and'fforfposi- "other disc at the othe end lot e tefi eei r seat of th else; largements, said reflector including a k receivable "tonsil? extend log into the j for preventing socket rotation n e .A devit p the cha cte dc. ing in combination "an 'ap'ertured jreflecton a socket receivable by the reflector aperture and including a portion arranged ior' light 51 11313 m nt n mea s in er at th f's t. en for refleotjorfengageni'ent immediately adjacent the. i 'ier im tii mg m e t r the i t ll on direc o n, t e, r fl ct r a ertu e, th r Hi afr ser ieblbv an werer'p smtnn 011 its Ids the opposite side of the reflector whe'nthe "socket is mounted, anda spring construction arranged to bear against the reflector upon, the side foppoin a 'in; -of the'automatic locating or seatingtype, 1d

reflector aperture including a radial enl"rge"rnent E1 50 for the passage of said second mentioned means therethrough in the seating of the socket upon the reflector, said second mentioned means consisting of an outwardly projecting tongue integral with and formed from said socket, said socket including a tubular body having a pair of diametrically positioned slots extending longitudinally thereof from one end, a lateral extension for each slot and a longitudinal extension thereof terminating short of the other end and extending toward but terminating short of the opposite end, a pair of discs for conductor support each having a pair of oppositely positioned radially extending tongues for slot reception, and disc mounting yielding means interposed between the discs for normally projecting one disc of said pair of discs toward the remote end of the longitudinal extension of the slot and for positioning the other disc of said pair of discs at the other end of said slot extension for seating the radial enlargements of the discs.

5. Adevice of the character described including in combination an apertured reflector, a socket receivable by the reflector aperture and including a portion arranged for light bulb mounting, means intermediate the socket ends for reflector engagement immediately adjacent the aperture for limiting movement of the socket in one direction in the reflector aperture, other means carried by said socket for positioning upon the opposite side of the reflector when the socket is mounted, and a spring construction arranged to bear against the reflector upon the side opposite from the first mentioned reflector engagement and arranged to engage the second mentioned other means for yielding retention of the socket in the reflector aperture, said spring and second mentioned other means engagement being of the automatic locating or seating type, said spring being substantially U-shaped in plan with the legs substantially arcuate in elevation, the intermediate portion of each being offset for seating the second mentioned means therein, the reflector aperture including a radial enlargement for the passage of said first mentioned means for seating the socket upon the reflector, said second mentioned means consisting of an outwardly projecting tongue integral with said socket; said socket including a tubular body having a pair of diametrically positioned slots extending longitudinally thereof from one end, a lateral extension for each slot and a longitudinal extension thereof terminating short of the other end and extending toward but terminating short of the opposite end for seat formation, a pair of discs for conductor support each having a pair of oppositely positioned radially extending tongues for slot reception, and disc mounting yielding means interposed between the discs for normally projecting one disc to the end of the longitudinal slot extension and for positioning the other disc at the other end of said slot extension for seating the disc radial enlargements, said reflector including a tongue extending into the aperture for socket slot reception and preventing socket rotation in said aperture.

CHRIS W. ROHOUR. 

